How do I get rid of Aphis fabae Scop from my haba beans?

I am growin faba beans and I noticed they are infestated by the Aphis fabae Scop, see below for picture. Has anyone had the same problem, what product did you use to get rid of them without killing the plants? a href="http://www.agraria.org/entomologia-agraria/afide-nero-della-fava.htm" rel="nofollow"http://www.agraria.org/entomologia-agrar…/a